Clamp



Oct. 1, 1929.

J. 5. LAPP CLAMP Filed Mafch 16, 1928 Fig 5:

INVENTOR.

Patented Oct. 1, 1929 UNITED STATES mam emcr JOHN S. LAPP, OF LE BOY,NEW YORK, ASSIGNOR TO LAP INSULATOR COMPANY, INC.,

A CORPORATION OF NEW YORK CLAMP Application filed March 16, 1928. SerialNo. 262,251.

This invention relates to clamps or supports and more particularly todevices for holding and supporting cables, wires, elec tric conductorsand the like.

WVire supporting clamps of this type are generally employed inconnection with a string of suspension insulators, the clamps being hungfrom the bottom of such a string and the associated conductor supportedin the clamp.

An object of this invention is to provide an improved construction ofconductor supporting clamp of the type set forth.

A further object is to provide av conductor clamp of simple form whichwill be cheap to manufacture and easy to install.

These and other objects which will be apparent to those skilled in thisparticular art are accomplished by means of the invention illustrated inthe accompanying drawings in which Figure 1 is an end elevation of aline clamp constructed in accordance with one embodiment of thisinvention. Fig. 2 is a top plan view of the arrangement shown in Fig. 1and Fig. 3 is a perspective view of one of the cooperating membersforming the present invention.

The particular embodiment of the present invention which has been chosenfor the purposes of illustration includes two cooperating body memberswhich are of identical shape so that a single casting may be employed inproducing the cooperating members of the clamp. These members are formedso as to interlock in such a manner as to prevent relative movementthereof in any direction when clamped in operative position. Theirarrangement is such that a single clamping means may be employed forlocking the two members in operative position, and this clamping meansmay be located in an accessible position below the associated conductor.

As illustrated, the clamp includes separate cooperating members 5, eachof which is formed as shown in Fig. 3 and includes a body portion 6having a horizontal row of spaced, laterally projected teeth 7 adaptedto interlock with the teeth of the cooperating member so as to providean extended seat .8 for the line orcable 9 supported thereby. 7

Above the line supporting teeth, each membe]: has an inwardlyprojectingcable clampmg projection 10 provided with projecting teeth 22 adapted tointerlock with similar teeth of the co-operating member in such a manneras to force the cable downwardly between the inclined cable engagingsurfaces 11 which, as the cooperating members are clamped together,cont-inue to force the cable downwardly until it is clamped against thesupporting seat 8. This is best shown in Fig. 1.

Each member is provided with an 'upwardly extending perforatedsupporting. gear 12 positioned in offset relation to the body portion towhich it is connected by an angularly extended neck 13 provided with aslot 14 for receiving the neck of the cooperatmg member. It will beapparent that the, necks 13 interlock with each other in such a way asto prevent separation of those portions of the clamping members locatedabove the supported cable or line 9. Each neck is provided with anoutwardly extending lug 15 on which is formed a boss 16 engaging arecess 17 in the corresponding lug 15 of the opposite member, see Figs.1 and 2, for preventing relative movement between the upper portions ofthe separate members. Each member is provided with a depending flange 18having one or more openings 19 for receiving locking bolts 20.

It will be apparent that the separate members are so formed that asingle locking mechanism such as the bolt 20 operates to secure themembers in line clamping position against relative movement in anydirection. The upper portions of the members are so formed as tointerlock automatically when assembled together so that the singleclamping mechanism, which may be so placed as to come at one side onlyof the line to be clamped, holds the line supporting teeth 7 in clampingposition. Each member is identical in shape with the cooperating memberso that a single casting forms both parts of the clamp, and the clampmay be made in various sizes depending upon the size of wire to besupported. The clamp may be hung from the usual insulator supportedhanger or from any desired support by means of the openings 21 in thesupporting ears.

What I claim as new and desire to secure by Letters Patent is:

1. A line clamp including separable members provided with line clampingfaces, interlocking portions on said members for securing said membersagainst relative lateral movement and interengaging pins and recesses onsaid interlocking portions for preventing relative longitudinal movementof said members.

2. A line clamp including separable members provided with line clampingfaces, interlocking portions on said members for securing said membersagainst relative lateral movement and interengaging portions on saidinterlocking portions for preventing relative longitudinal movement ofsaid members.

In testimony whereof, I have hereunto subscribed my name this 27th dayof February, 1928.

JOHN S. LAPP.

